EP2906876B1 - Procédé de fonctionnement d'un générateur de vapeur - Google Patents

Procédé de fonctionnement d'un générateur de vapeur Download PDF

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Publication number
EP2906876B1
EP2906876B1 EP13777007.9A EP13777007A EP2906876B1 EP 2906876 B1 EP2906876 B1 EP 2906876B1 EP 13777007 A EP13777007 A EP 13777007A EP 2906876 B1 EP2906876 B1 EP 2906876B1
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EP
European Patent Office
Prior art keywords
lignite
mill
drying
dry
stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13777007.9A
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German (de)
English (en)
Other versions
EP2906876A2 (fr
EP2906876B2 (fr
Inventor
Rainer Hesse
Bernhard Röper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RWE Power AG
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RWE Power AG
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49378255&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2906876(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by RWE Power AG filed Critical RWE Power AG
Priority to PL13777007T priority Critical patent/PL2906876T5/pl
Publication of EP2906876A2 publication Critical patent/EP2906876A2/fr
Publication of EP2906876B1 publication Critical patent/EP2906876B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • F23K1/04—Heating fuel prior to delivery to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/20—Drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/50—Blending
    • F23K2201/501—Blending with other fuels or combustible waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/002—Feeding devices for steam boilers, e.g. in locomotives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/20—Feeding/conveying devices
    • F23K2203/202—Feeding/conveying devices using screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/01041—Heating by using exhaust gas heat

Claims (15)

  1. Procédé de fonctionnement d'un générateur de vapeur avec une chaudière fonctionnant au lignite, avec au moins un premier broyeur pour broyer le lignite, le procédé comprenant les étapes de procédé suivantes :
    - broyage de lignite ayant subi l'humidité de la mine dans le premier broyeur ;
    - branchement d'un flux de gaz de fumée de séchage provenant de la chaudière ;
    - séchage du lignite brut dans le premier broyeur au contact direct du flux de gaz de fumée de séchage ;
    - mise à feu d'un flux de lignite séché par gaz de fumée provenant du premier broyeur dans la chaudière ; et caractérisé par les étapes de procédé suivantes :
    - séchage d'une quantité partielle de lignite brut dans un groupe de séchage séparé pour obtenir du lignite sec ; et
    - amenée du lignite sec provenant du groupe de séchage séparé dans le flux de lignite séché par gaz de fumée du premier broyeur avant une distribution dans le brûleur ou pendant la distribution dans le brûleur.
  2. Procédé selon la revendication 1, caractérisé en ce que le groupe de séchage séparé prévu est au moins un sécheur à chauffage indirect.
  3. Procédé selon la revendication 1, caractérisé en ce que le groupe de séchage séparé prévu est au moins un deuxième broyeur dans lequel le séchage est réalisé au contact du flux de gaz de fumée de séchage dans une atmosphère rendue inerte.
  4. Procédé selon la revendication 3, caractérisé en ce que le lignite séché provenant du deuxième broyeur est intégré au moins en partie sous la forme de lignite sec dans le flux de lignite séché par gaz de fumée du premier broyeur.
  5. Procédé selon la revendication 1 à 4, caractérisé en ce que le lignite sec provenant du groupe de séchage est amené dans le broyeur et y est soumis, conjointement avec le lignite brut, à un post-broyage.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la chaudière est enflammée avec des brûleurs sans flamme auxquels sont amenés le flux de lignite séché par gaz de fumée.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le lignite sec est amené dans une conduite de recirculation de gaz de sustentation du premier broyeur.
  8. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le lignite sec est amené dans un retour de matière solide du séparateur de broyeur du premier broyeur.
  9. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le lignite sec est amené dans une zone d'entrée du premier broyeur à l'aide d'au moins un transporteur à vis sans fin.
  10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le premier broyeur utilisé est au moins un broyeur à roue percutante.
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'entre 15 % et 35 % de la totalité du lignite à brûler, par rapport au pouvoir calorifique du lignite en pleine charge du générateur de vapeur, est soumise à un séchage dans un groupe de séchage séparé.
  12. Procédé selon l'une quelconque des revendications 1 ou 2 ou 6 à 11, caractérisé en ce que le séchage indirect du lignite est réalisé dans au moins un sécheur à lit fluidisé.
  13. Procédé selon la revendication 12, caractérisé en ce que l'énergie des vapeurs produites lors du séchage indirect est utilisée au moins en partie pour préchauffer l'air de combustion et/ou de l'eau d'alimentation de la chaudière.
  14. Procédé selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le lignite sec est réacheminé dans le flux de lignite séché par gaz de fumée du premier broyeur par les brûleurs d'attaque du générateur de vapeur au moyen d'un dispositif d'inversion dès qu'un foyer d'attaque et/ou de soutien n'est plus nécessaire pour le générateur de vapeur.
  15. Procédé selon l'une quelconque des revendications 1 à 14, caractérisé en ce que la quantité de lignite sec accumulé est réglée en fonction de la demande de charge de la puissance de combustion du générateur de vapeur.
EP13777007.9A 2012-10-11 2013-10-10 Procédé de fonctionnement d'un générateur de vapeur Active EP2906876B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13777007T PL2906876T5 (pl) 2012-10-11 2013-10-10 Sposób eksploatacji wytwornicy pary

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012019928.7A DE102012019928A1 (de) 2012-10-11 2012-10-11 Verfahren zum Betrieb eines Dampferzeugers
PCT/EP2013/071139 WO2014057025A2 (fr) 2012-10-11 2013-10-10 Procédé permettant de faire fonctionner un générateur de vapeur

Publications (3)

Publication Number Publication Date
EP2906876A2 EP2906876A2 (fr) 2015-08-19
EP2906876B1 true EP2906876B1 (fr) 2016-12-28
EP2906876B2 EP2906876B2 (fr) 2020-01-01

Family

ID=49378255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13777007.9A Active EP2906876B2 (fr) 2012-10-11 2013-10-10 Procédé de fonctionnement d'un générateur de vapeur

Country Status (7)

Country Link
EP (1) EP2906876B2 (fr)
CN (1) CN104781606B (fr)
AU (2) AU2013328717A1 (fr)
CA (1) CA2887109C (fr)
DE (1) DE102012019928A1 (fr)
PL (1) PL2906876T5 (fr)
WO (1) WO2014057025A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019928A1 (de) 2012-10-11 2014-04-30 Rwe Power Aktiengesellschaft Verfahren zum Betrieb eines Dampferzeugers
DE102015117191A1 (de) * 2015-10-08 2017-04-13 Mitsubishi Hitachi Power Systems Europe Gmbh Kohlekraftwerk mit Mühlenluftwärmetauscher

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DE3835427A1 (de) 1988-10-18 1990-04-19 Saarberg Interplan Gmbh Verfahren zur erzeugung elektrischer energie und/oder heiz- und prozesswaerme
DE3835428A1 (de) 1988-10-18 1990-04-19 Saarberg Interplan Gmbh Verfahren zur erzeugung elektrischer energie und/oder heiz- und prozesswaerme
DE4003499A1 (de) 1989-02-06 1990-08-09 Steinmueller Gmbh L & C Vorrichtung zur trocknung, mahlung und verbrennung ballastreicher brennstoffe
EP0694148A1 (fr) 1993-04-16 1996-01-31 Ver Energiewerke Ag Procede et installation permettant de bruler des matieres organiques et du charbon pulverise
DE19623209C1 (de) 1996-06-11 1998-02-26 Rheinische Braunkohlenw Ag Verfahren zum Betrieb eines mit Braunkohle befeuerten Kraftwerkes sowie ein derartiges Kraftwerk
DE19643573A1 (de) 1996-10-11 1998-04-16 Ver Energiewerke Ag Verfahren zur Mitverbrennung von Klärschlamm
DE102009035062A1 (de) 2009-07-28 2011-02-10 Rwe Power Ag Verfahren zum Betrieb eines Dampfturbinenkraftwerks sowie Einrichtung zur Erzeugung von Dampf
DE102012108539A1 (de) 2012-09-12 2014-03-13 Hitachi Power Europe Gmbh Kohlenstaubmühle mit Biomassevermahlungsbereich
WO2014057025A2 (fr) 2012-10-11 2014-04-17 Rwe Power Aktiengesellschaft Procédé permettant de faire fonctionner un générateur de vapeur

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DE4203713C2 (de) 1992-02-08 1996-01-18 Rwe Energie Ag Verfahren zum Betrieb eines mit einem trocknungsbedürftigen Brennstoff befeuerten Kraftwerkes
EP0581089A2 (fr) † 1992-07-29 1994-02-02 Dipl.-Ing. SF-Ing. MANFRED BAHNEMANN RECYCLING-SYSTEME GmbH Procédé de traitement de composites métal-plastiques
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DE19620047C2 (de) 1996-05-18 2002-06-27 Rwe Rheinbraun Ag Verfahren und Vorrichtung zum Trocknen von Braunkohle
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DE3835427A1 (de) 1988-10-18 1990-04-19 Saarberg Interplan Gmbh Verfahren zur erzeugung elektrischer energie und/oder heiz- und prozesswaerme
DE3835428A1 (de) 1988-10-18 1990-04-19 Saarberg Interplan Gmbh Verfahren zur erzeugung elektrischer energie und/oder heiz- und prozesswaerme
DE4003499A1 (de) 1989-02-06 1990-08-09 Steinmueller Gmbh L & C Vorrichtung zur trocknung, mahlung und verbrennung ballastreicher brennstoffe
EP0694148A1 (fr) 1993-04-16 1996-01-31 Ver Energiewerke Ag Procede et installation permettant de bruler des matieres organiques et du charbon pulverise
DE19623209C1 (de) 1996-06-11 1998-02-26 Rheinische Braunkohlenw Ag Verfahren zum Betrieb eines mit Braunkohle befeuerten Kraftwerkes sowie ein derartiges Kraftwerk
DE19643573A1 (de) 1996-10-11 1998-04-16 Ver Energiewerke Ag Verfahren zur Mitverbrennung von Klärschlamm
DE102009035062A1 (de) 2009-07-28 2011-02-10 Rwe Power Ag Verfahren zum Betrieb eines Dampfturbinenkraftwerks sowie Einrichtung zur Erzeugung von Dampf
DE102012108539A1 (de) 2012-09-12 2014-03-13 Hitachi Power Europe Gmbh Kohlenstaubmühle mit Biomassevermahlungsbereich
WO2014057025A2 (fr) 2012-10-11 2014-04-17 Rwe Power Aktiengesellschaft Procédé permettant de faire fonctionner un générateur de vapeur
DE102012019928A1 (de) 2012-10-11 2014-04-30 Rwe Power Aktiengesellschaft Verfahren zum Betrieb eines Dampferzeugers

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Also Published As

Publication number Publication date
DE102012019928A1 (de) 2014-04-30
AU2018202163A1 (en) 2018-04-26
CA2887109A1 (fr) 2014-04-17
CA2887109C (fr) 2020-09-01
AU2013328717A1 (en) 2015-05-07
EP2906876A2 (fr) 2015-08-19
WO2014057025A2 (fr) 2014-04-17
WO2014057025A3 (fr) 2015-01-22
PL2906876T5 (pl) 2020-07-13
PL2906876T3 (pl) 2017-06-30
CN104781606B (zh) 2017-08-29
AU2018202163B2 (en) 2019-09-19
CN104781606A (zh) 2015-07-15
EP2906876B2 (fr) 2020-01-01

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